Patent US2269594A successfully refreshed from Google Patents.
US3850202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection site for a flow conduit
Assignee: Individual
•
Filing: 1972-08-15
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Granted: 1974-11-26
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Expires: 1992-08-15
Abstract
Abstract An injection site for a fluid flow conduit which comprises a housing and an elastomeric wall maintained within the housing under compression, in which the wall defines a portion of the fluid flow conduit. When a needle penetrates the wall for injection purposes, and is later withdrawn, the compressive force provides a positive seal capable of preventing the leakage of fluid from the conduit, even when the fluid is under positive pressure.
Inventors
- 👤 B Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/002; F16L21/005; A; A61; A61M; A61M39/00; A61M39/02; A61M39/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
58 words
In a fluid flow conduit, an injection site which comprises a housing, and an elastomeric wall maintained under radial compression and enclosed within said housing, said wall along its entire length defining a portion of said fluid flow conduit, and said compression being sufficient to prevent leakage through said wall after said wall is punctured with a needle.
Claim 2
Dependent Claim
58 words
In a fluid flow conduit, an injection site which comprises a housing, and an elastomeric wall maintained under radial compression and enclosed within said housing, said wall along its entire length defining a portion of said fluid flow conduit, and said compression being sufficient to prevent leakage through said wall after said wall is punctured with a needle.
Claim 3
Dependent Claim
34 words
The injection site of claim 1 in which the natural, uncompressed dimensions of said wall are at least 10 per cent greater than the compressed dimensions of said wall as maintained in the housing.
Claim 4
Dependent Claim
15 words
The injection site of claim 1 in which said wall is made of silicone rubber.
Claim 5
Dependent Claim
81 words
In a fluid flow conduit, an injection site which comprises a housing having a bore therein, an elastomeric tube having uncompressed, outer, transverse dimensions greater than the transverse dimensions of said bore, said tube along its entire length defining a portion of said fluid flow conduit, said tube being positioned in said bore under radial compression, and a port in said housing exposing a portion of said compressed tube to the exterior of said housing for access by an injection needle.
Claim 6
Dependent Claim
81 words
In a fluid flow conduit, an injection site which comprises a housing having a bore therein, an elastomeric tube having uncompressed, outer, transverse dimensions greater than the transverse dimensions of said bore, said tube along its entire length defining a portion of said fluid flow conduit, said tube being positioned in said bore under radial compression, and a port in said housing exposing a portion of said compressed tube to the exterior of said housing for access by an injection needle.
Claim 7
Dependent Claim
38 words
The injection site of claim 4 in which the uncompressed, outer, transverse dimensions of said elastomeric tube are at least 10 per cent greater than the compressed outer, transverse dimensions of said tube as maintained in said housing.
Claim 8
Dependent Claim
36 words
The injection site of claim 4 in which the side of said housing opposite and adjacent said port defines a solid wall to prevent an injection needle in said port from passing completely through said housing.
Claim 9
Dependent Claim
38 words
The injection site of claim 5 in which said port has a dimension transverse to said elastomeric tube which is no more than about 60 percent of the outer transverse dimension of said tube compressed in said housing.
Claim 10
Dependent Claim
59 words
The injection site of claim 7 in which conduits having bores of identical diameter to the bore of the compressed elastomeric tube are carried in each end of the bore of the housing in abutting relation with the ends of said elastomeric tube, whereby a smooth flow path, free of discontinuities, is defined through said conduits and elastomeric tubes.
Claim 11
Dependent Claim
16 words
The injection site of claim 8 in which said elastomeric tube is made of silicone rubber.
Claim 12
Dependent Claim
38 words
The injection site of claim 8 in which the uncompressed, outer, transverse dimensions of said elastomeric tube are at least 10 per cent greater than the compressed, outer, transverse dimensions of said tube as maintained in said housing.
Claim 13
Dependent Claim
15 words
The injection site of claim 5 wherein said elastomeric tube is made of latex rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |